Tidal's "HiFi" format was actually the lossy MQA. Seems they recently started to convert their catalog to the truly lossless FLAC: https://www.techhive.com/arti

Tidal's "HiFi" format was actually the lossy MQA. Seems they recently started to convert their catalog to the truly lossless FLAC: https://www.techhive.com/article/1974696/tidal-flac-preferred-hi-res-format-not-mqa.html https://www.techhive.com/article/1974696/tidal-flac-preferre...